Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

End-of-Year Fundraising Drive In Progress. Please visit our home page to see this and other announcements:     Thank you. --Jody

MMD > Archives > July 2002 > 2002.07.12 > 05Prev  Next

Adding Foot Pedal Exhausters to Duo-Art Grand
By Julian Dyer

It isn't particularly straightforward to add a pedal box to an
electric Duo-Art!

Pedal-Electric Duo-Arts [PEDA] have a completely different form of
expression box, with three sets of large valves inside.  One is the
themeing for Duo-Art (switches the stack from accompaniment to theme
suction); the second is the themeing for foot playing (switches the
stack from accompaniment to unregulated supply suction); the third
set isolates the theme side of the Duo-Art box when in foot-pump mode.
Electric-only Duo-Arts only have the first set of valves.

The pedal-electric system also requires the standard Themodist manual
controls for accompaniment.  There are also additional controls
surrounding this, such as two sets of theme primary valves and a
crossover switch to operate the right set according to playing mode.
There is also a switch that automatically disables the theme side of
the box when foot-playing, even if Duo-Art mode is selected.

Some British Weber Duo-Art grands were equipped with the 6-valve
expression box even if sold in electric-only form.  Other than these,
conversion requires major changes to the expression system --
effectively, an entirely new expression box.  Not a particularly
sensible thing to do!

The largest British Weber, the 6-foot model 12 grand, in Duo-Art form
seems to be in plentiful supply at the moment.  These pianos cost very
nearly as much as a Steinway when new (850 guineas vs. 1050 guineas in
1924), but nowadays are far cheaper even though they are superb
instruments.  I'd buy one if I didn't have one already!

Julian Dyer

(Message sent Fri 12 Jul 2002, 17:22:33 GMT, from time zone GMT+0100.)

Key Words in Subject:  Adding, Duo-Art, Exhausters, Foot, Grand, Pedal

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2023 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

Translate This Page